llvm-mirror/include/llvm/MC/MCWinCOFFObjectWriter.h
Peter Collingbourne 799b49b89d MC: Separate creating a generic object writer from creating a target object writer. NFCI.
With this we gain a little flexibility in how the generic object
writer is created.

Part of PR37466.

Differential Revision: https://reviews.llvm.org/D47045

llvm-svn: 332868
2018-05-21 19:20:29 +00:00

58 lines
1.8 KiB
C++

//===- llvm/MC/MCWinCOFFObjectWriter.h - Win COFF Object Writer -*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_MC_MCWINCOFFOBJECTWRITER_H
#define LLVM_MC_MCWINCOFFOBJECTWRITER_H
#include "llvm/MC/MCObjectWriter.h"
#include <memory>
namespace llvm {
class MCAsmBackend;
class MCContext;
class MCFixup;
class MCValue;
class raw_pwrite_stream;
class MCWinCOFFObjectTargetWriter : public MCObjectTargetWriter {
virtual void anchor();
const unsigned Machine;
protected:
MCWinCOFFObjectTargetWriter(unsigned Machine_);
public:
virtual ~MCWinCOFFObjectTargetWriter() = default;
virtual Triple::ObjectFormatType getFormat() const { return Triple::COFF; }
static bool classof(const MCObjectTargetWriter *W) {
return W->getFormat() == Triple::COFF;
}
unsigned getMachine() const { return Machine; }
virtual unsigned getRelocType(MCContext &Ctx, const MCValue &Target,
const MCFixup &Fixup, bool IsCrossSection,
const MCAsmBackend &MAB) const = 0;
virtual bool recordRelocation(const MCFixup &) const { return true; }
};
/// Construct a new Win COFF writer instance.
///
/// \param MOTW - The target specific WinCOFF writer subclass.
/// \param OS - The stream to write to.
/// \returns The constructed object writer.
std::unique_ptr<MCObjectWriter>
createWinCOFFObjectWriter(std::unique_ptr<MCWinCOFFObjectTargetWriter> MOTW,
raw_pwrite_stream &OS);
} // end namespace llvm
#endif // LLVM_MC_MCWINCOFFOBJECTWRITER_H